1 /*- 2 * SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB 3 * 4 * Copyright (c) 2015 - 2022 Intel Corporation 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenFabrics.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 */ 34 /*$FreeBSD$*/ 35 36 #ifndef IRDMA_VERBS_H 37 #define IRDMA_VERBS_H 38 39 #define IRDMA_MAX_SAVED_PHY_PGADDR 4 40 #define IRDMA_FLUSH_DELAY_MS 20 41 42 #define IRDMA_PKEY_TBL_SZ 1 43 #define IRDMA_DEFAULT_PKEY 0xFFFF 44 45 #define iwdev_to_idev(iwdev) (&(iwdev)->rf->sc_dev) 46 47 struct irdma_ucontext { 48 struct ib_ucontext ibucontext; 49 struct irdma_device *iwdev; 50 #if __FreeBSD_version >= 1400026 51 struct rdma_user_mmap_entry *db_mmap_entry; 52 #else 53 struct irdma_user_mmap_entry *db_mmap_entry; 54 DECLARE_HASHTABLE(mmap_hash_tbl, 6); 55 spinlock_t mmap_tbl_lock; /* protect mmap hash table entries */ 56 #endif 57 struct list_head cq_reg_mem_list; 58 spinlock_t cq_reg_mem_list_lock; /* protect CQ memory list */ 59 struct list_head qp_reg_mem_list; 60 spinlock_t qp_reg_mem_list_lock; /* protect QP memory list */ 61 /* FIXME: Move to kcompat ideally. Used < 4.20.0 for old diassasscoaite flow */ 62 struct list_head vma_list; 63 struct mutex vma_list_mutex; /* protect the vma_list */ 64 int abi_ver; 65 bool legacy_mode; 66 }; 67 68 struct irdma_pd { 69 struct ib_pd ibpd; 70 struct irdma_sc_pd sc_pd; 71 }; 72 73 struct irdma_av { 74 u8 macaddr[16]; 75 struct ib_ah_attr attrs; 76 union { 77 struct sockaddr saddr; 78 struct sockaddr_in saddr_in; 79 struct sockaddr_in6 saddr_in6; 80 } sgid_addr, dgid_addr; 81 u8 net_type; 82 }; 83 84 struct irdma_ah { 85 struct ib_ah ibah; 86 struct irdma_sc_ah sc_ah; 87 struct irdma_pd *pd; 88 struct irdma_av av; 89 u8 sgid_index; 90 union ib_gid dgid; 91 }; 92 93 struct irdma_hmc_pble { 94 union { 95 u32 idx; 96 dma_addr_t addr; 97 }; 98 }; 99 100 struct irdma_cq_mr { 101 struct irdma_hmc_pble cq_pbl; 102 dma_addr_t shadow; 103 bool split; 104 }; 105 106 struct irdma_qp_mr { 107 struct irdma_hmc_pble sq_pbl; 108 struct irdma_hmc_pble rq_pbl; 109 dma_addr_t shadow; 110 struct page *sq_page; 111 }; 112 113 struct irdma_cq_buf { 114 struct irdma_dma_mem kmem_buf; 115 struct irdma_cq_uk cq_uk; 116 struct irdma_hw *hw; 117 struct list_head list; 118 struct work_struct work; 119 }; 120 121 struct irdma_pbl { 122 struct list_head list; 123 union { 124 struct irdma_qp_mr qp_mr; 125 struct irdma_cq_mr cq_mr; 126 }; 127 128 bool pbl_allocated:1; 129 bool on_list:1; 130 u64 user_base; 131 struct irdma_pble_alloc pble_alloc; 132 struct irdma_mr *iwmr; 133 }; 134 135 struct irdma_mr { 136 union { 137 struct ib_mr ibmr; 138 struct ib_mw ibmw; 139 }; 140 struct ib_umem *region; 141 int access; 142 u8 is_hwreg; 143 u16 type; 144 u32 page_cnt; 145 u64 page_size; 146 u64 page_msk; 147 u32 npages; 148 u32 stag; 149 u64 len; 150 u64 pgaddrmem[IRDMA_MAX_SAVED_PHY_PGADDR]; 151 struct irdma_pbl iwpbl; 152 }; 153 154 struct irdma_cq { 155 struct ib_cq ibcq; 156 struct irdma_sc_cq sc_cq; 157 u16 cq_head; 158 u16 cq_size; 159 u16 cq_num; 160 bool user_mode; 161 atomic_t armed; 162 enum irdma_cmpl_notify last_notify; 163 u32 polled_cmpls; 164 u32 cq_mem_size; 165 struct irdma_dma_mem kmem; 166 struct irdma_dma_mem kmem_shadow; 167 struct completion free_cq; 168 atomic_t refcnt; 169 spinlock_t lock; /* for poll cq */ 170 struct irdma_pbl *iwpbl; 171 struct irdma_pbl *iwpbl_shadow; 172 struct list_head resize_list; 173 struct irdma_cq_poll_info cur_cqe; 174 struct list_head cmpl_generated; 175 }; 176 177 struct irdma_cmpl_gen { 178 struct list_head list; 179 struct irdma_cq_poll_info cpi; 180 }; 181 182 struct disconn_work { 183 struct work_struct work; 184 struct irdma_qp *iwqp; 185 }; 186 187 struct iw_cm_id; 188 189 struct irdma_qp_kmode { 190 struct irdma_dma_mem dma_mem; 191 u32 *sig_trk_mem; 192 struct irdma_sq_uk_wr_trk_info *sq_wrid_mem; 193 u64 *rq_wrid_mem; 194 }; 195 196 struct irdma_qp { 197 struct ib_qp ibqp; 198 struct irdma_sc_qp sc_qp; 199 struct irdma_device *iwdev; 200 struct irdma_cq *iwscq; 201 struct irdma_cq *iwrcq; 202 struct irdma_pd *iwpd; 203 #if __FreeBSD_version >= 1400026 204 struct rdma_user_mmap_entry *push_wqe_mmap_entry; 205 struct rdma_user_mmap_entry *push_db_mmap_entry; 206 #else 207 struct irdma_user_mmap_entry *push_wqe_mmap_entry; 208 struct irdma_user_mmap_entry *push_db_mmap_entry; 209 #endif 210 struct irdma_qp_host_ctx_info ctx_info; 211 union { 212 struct irdma_iwarp_offload_info iwarp_info; 213 struct irdma_roce_offload_info roce_info; 214 }; 215 216 union { 217 struct irdma_tcp_offload_info tcp_info; 218 struct irdma_udp_offload_info udp_info; 219 }; 220 221 struct irdma_ah roce_ah; 222 struct list_head teardown_entry; 223 atomic_t refcnt; 224 struct iw_cm_id *cm_id; 225 struct irdma_cm_node *cm_node; 226 struct delayed_work dwork_flush; 227 struct ib_mr *lsmm_mr; 228 atomic_t hw_mod_qp_pend; 229 enum ib_qp_state ibqp_state; 230 u32 qp_mem_size; 231 u32 last_aeq; 232 int max_send_wr; 233 int max_recv_wr; 234 atomic_t close_timer_started; 235 spinlock_t lock; /* serialize posting WRs to SQ/RQ */ 236 struct irdma_qp_context *iwqp_context; 237 void *pbl_vbase; 238 dma_addr_t pbl_pbase; 239 struct page *page; 240 u8 iwarp_state; 241 u16 term_sq_flush_code; 242 u16 term_rq_flush_code; 243 u8 hw_iwarp_state; 244 u8 hw_tcp_state; 245 struct irdma_qp_kmode kqp; 246 struct irdma_dma_mem host_ctx; 247 struct timer_list terminate_timer; 248 struct irdma_pbl *iwpbl; 249 struct irdma_sge *sg_list; 250 struct irdma_dma_mem q2_ctx_mem; 251 struct irdma_dma_mem ietf_mem; 252 struct completion free_qp; 253 wait_queue_head_t waitq; 254 wait_queue_head_t mod_qp_waitq; 255 u8 rts_ae_rcvd; 256 u8 active_conn : 1; 257 u8 user_mode : 1; 258 u8 hte_added : 1; 259 u8 flush_issued : 1; 260 u8 sig_all : 1; 261 u8 pau_mode : 1; 262 }; 263 264 enum irdma_mmap_flag { 265 IRDMA_MMAP_IO_NC, 266 IRDMA_MMAP_IO_WC, 267 }; 268 269 struct irdma_user_mmap_entry { 270 #if __FreeBSD_version >= 1400026 271 struct rdma_user_mmap_entry rdma_entry; 272 #else 273 struct irdma_ucontext *ucontext; 274 struct hlist_node hlist; 275 u64 pgoff_key; /* Used to compute offset (in bytes) returned to user libc's mmap */ 276 #endif 277 u64 bar_offset; 278 u8 mmap_flag; 279 }; 280 281 static inline u16 irdma_fw_major_ver(struct irdma_sc_dev *dev) 282 { 283 return (u16)FIELD_GET(IRDMA_FW_VER_MAJOR, dev->feature_info[IRDMA_FEATURE_FW_INFO]); 284 } 285 286 static inline u16 irdma_fw_minor_ver(struct irdma_sc_dev *dev) 287 { 288 return (u16)FIELD_GET(IRDMA_FW_VER_MINOR, dev->feature_info[IRDMA_FEATURE_FW_INFO]); 289 } 290 291 /** 292 * irdma_mcast_mac_v4 - Get the multicast MAC for an IP address 293 * @ip_addr: IPv4 address 294 * @mac: pointer to result MAC address 295 * 296 */ 297 static inline void irdma_mcast_mac_v4(u32 *ip_addr, u8 *mac) 298 { 299 u8 *ip = (u8 *)ip_addr; 300 unsigned char mac4[ETH_ALEN] = {0x01, 0x00, 0x5E, ip[2] & 0x7F, ip[1], 301 ip[0]}; 302 303 ether_addr_copy(mac, mac4); 304 } 305 306 /** 307 * irdma_mcast_mac_v6 - Get the multicast MAC for an IP address 308 * @ip_addr: IPv6 address 309 * @mac: pointer to result MAC address 310 * 311 */ 312 static inline void irdma_mcast_mac_v6(u32 *ip_addr, u8 *mac) 313 { 314 u8 *ip = (u8 *)ip_addr; 315 unsigned char mac6[ETH_ALEN] = {0x33, 0x33, ip[3], ip[2], ip[1], ip[0]}; 316 317 ether_addr_copy(mac, mac6); 318 } 319 320 #if __FreeBSD_version >= 1400026 321 struct rdma_user_mmap_entry* 322 irdma_user_mmap_entry_insert(struct irdma_ucontext *ucontext, u64 bar_offset, 323 enum irdma_mmap_flag mmap_flag, u64 *mmap_offset); 324 #else 325 struct irdma_user_mmap_entry * 326 irdma_user_mmap_entry_add_hash(struct irdma_ucontext *ucontext, u64 bar_offset, 327 enum irdma_mmap_flag mmap_flag, u64 *mmap_offset); 328 void irdma_user_mmap_entry_del_hash(struct irdma_user_mmap_entry *entry); 329 #endif 330 int irdma_ib_register_device(struct irdma_device *iwdev); 331 void irdma_ib_unregister_device(struct irdma_device *iwdev); 332 void irdma_ib_qp_event(struct irdma_qp *iwqp, enum irdma_qp_event_type event); 333 void irdma_generate_flush_completions(struct irdma_qp *iwqp); 334 void irdma_remove_cmpls_list(struct irdma_cq *iwcq); 335 int irdma_generated_cmpls(struct irdma_cq *iwcq, struct irdma_cq_poll_info *cq_poll_info); 336 void irdma_sched_qp_flush_work(struct irdma_qp *iwqp); 337 void irdma_flush_worker(struct work_struct *work); 338 #endif /* IRDMA_VERBS_H */ 339